Finding the Fourth Proportional to 103,674.34, 143,139.45 and 79,758.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,674.34 : 143,139.45 = 79,758.82 : x
2. Step 2: Convert to fraction form
   103,674.34/143,139.45 = 79,758.82/x
3. Step 3: Cross multiply
   103,674.34x = 143,139.45 × 79,758.82
4. Step 4: Simplify right side
   103,674.34x = 11,416,633,627.45
5. Step 5: Solve for x
   x = 11,416,633,627.45/103,674.34
6. Step 6: Final answer
   x = 110,120.15